CN214578049U - Long circular oil port structure for hydraulic cylinder - Google Patents
Long circular oil port structure for hydraulic cylinder Download PDFInfo
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- CN214578049U CN214578049U CN202120628606.5U CN202120628606U CN214578049U CN 214578049 U CN214578049 U CN 214578049U CN 202120628606 U CN202120628606 U CN 202120628606U CN 214578049 U CN214578049 U CN 214578049U
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- oil port
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Abstract
The utility model discloses a long circular hydraulic fluid port structure for pneumatic cylinder belongs to pneumatic cylinder technical field. Comprises a cylinder barrel, wherein an oil port is formed on the cylinder barrel; the joint is fixed on the cylinder barrel, and the joint is communicated with the oil port; the shape of the oil port is oblong, the length direction of the oil port is along the circumferential direction of the cylinder barrel, and the width direction of the oil port is along the axial direction of the cylinder barrel. The joint is provided with an internal threaded hole, the oil port is opposite to the internal threaded hole of the joint, and the maximum contour line of the oil port does not exceed the bottom diameter of the internal threaded hole of the joint. When the piston rod extends outwards to the right end face of the piston and contacts with the guide sleeve, the oil port is opposite to a cavity formed between the piston and the guide sleeve in the radial direction. The utility model discloses a change cylinder hydraulic fluid port shape and obtain a small amount of spaces, shorten the whole axial size of pneumatic cylinder, solved the design problem of arranging of pneumatic cylinder under the narrow condition in axial space.
Description
Technical Field
The utility model relates to a pneumatic cylinder technical field specifically is a long circular hydraulic fluid port structure for pneumatic cylinder.
Background
The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion or swinging motion. The hydraulic cylinder is often designed under the condition of limited axial space, and when the actual space condition is not allowed to increase, the sizes of other parts of the hydraulic cylinder are required to be reduced.
Disclosure of Invention
The utility model aims at providing a hydraulic cylinder is with long circular hydraulic fluid port structure obtains a small amount of spaces, reduces the axial space of pneumatic cylinder through changing the hydraulic fluid port shape.
The utility model discloses a following technical scheme realizes: an oblong oil port structure for a hydraulic cylinder comprises a cylinder barrel, wherein an oil port is formed in the cylinder barrel; the joint is fixed on the cylinder barrel, and the joint is communicated with the oil port; the shape of the oil port is oblong, the length direction of the oil port is along the circumferential direction of the cylinder barrel, and the width direction of the oil port is along the axial direction of the cylinder barrel.
It further comprises the following steps: and two ends of the oil port in the length direction are of semi-arc closed structures.
The joint is provided with an internal threaded hole, the oil port is opposite to the internal threaded hole of the joint, and the maximum contour line of the oil port does not exceed the bottom diameter of the internal threaded hole of the joint.
The joint is welded on the surface of the cylinder barrel.
A guide sleeve is fixed at the end part of the cylinder barrel; the piston rod is arranged in the cylinder barrel, the outer end of the piston rod penetrates through the guide sleeve, and the inner end of the piston rod is provided with the piston; when the piston rod extends outwards to the right end face of the piston and contacts with the guide sleeve, the oil port is opposite to a cavity formed between the piston and the guide sleeve in the radial direction.
Compared with the prior art, the beneficial effects of the utility model are that: a small amount of space is obtained by changing the shape of the oil port of the cylinder barrel, the overall axial size of the hydraulic cylinder is shortened, and the problem of design and arrangement of the hydraulic cylinder under the condition of narrow axial space is solved.
Drawings
FIG. 1 is a front view of an embodiment of the present invention;
fig. 2 is a top view of an embodiment of the present invention;
in the figure: 1. a piston; 2. an oil port; 3. a joint; 4. a cylinder barrel; 5. a guide sleeve; 6. a piston rod.
Detailed Description
The following is a specific embodiment of the present invention, which will be further described with reference to the accompanying drawings.
Referring to fig. 1 and 2, an oblong oil port structure for a hydraulic cylinder includes a cylinder tube 4, and a guide sleeve 5 is fixed to an end of the cylinder tube 4. The piston rod 6 is installed in the cylinder 4, and the guide sleeve 5 is passed to the piston rod 6 outer end, and piston 1 is installed to the piston rod 6 inner.
The cylinder 4 is provided with an oil port 2. The shape of the oil port 2 is oblong, the length direction of the oil port 2 is along the circumferential direction of the cylinder barrel 4, and the width direction of the oil port 2 is along the axial direction of the cylinder barrel 4. Both ends of the oil port 2 in the length direction are of a semi-arc closed structure. The joint 3 is welded on the surface of the cylinder 4. The connector 3 is provided with an internal threaded hole, the oil port 2 is positioned at the bottom of the internal threaded hole of the connector 3 and is symmetrically arranged relative to the central axis of the connector 3, and the maximum contour line of the oil port 2 does not exceed the bottom diameter of the internal threaded hole of the connector 3. When the piston rod 6 extends to the right end face of the piston 1 to contact with the guide sleeve 5, the oil port 2 is opposite to the cavity formed between the piston 1 and the guide sleeve 5 in the radial direction.
The working principle is as follows:
the piston 1 moves rightwards, the oil port 2 discharges oil, and the piston 1 stops moving when the right end face of the piston contacts the guide sleeve 5;
when the oil port 2 is filled with oil, a cavity formed between the piston 1 and the guide sleeve 5 is used as an acting cavity of hydraulic oil to push the piston 1 to move leftwards. The axial size of the cavity depends on the axial width of the oil port 2, the long circular oil port structure is adopted, the space size is shortened in the axial direction, the overall axial size of the hydraulic cylinder is further shortened, and the flow of hydraulic oil is not affected due to the fact that the hydraulic cylinder is lengthened in the circumferential direction.
This embodiment changes traditional circular hydraulic fluid port into the long circle more, obtains a small amount of spaces, can solve the design problem of arranging of pneumatic cylinder under the narrow condition in axial space.
Claims (5)
1. An oblong oil port structure for a hydraulic cylinder comprises a cylinder barrel (4), wherein an oil port (2) is formed in the cylinder barrel (4); the joint (3) is fixed on the cylinder barrel (4), and the joint (3) is communicated with the oil port (2); the method is characterized in that: the shape of the oil port (2) is oblong, the length direction of the oil port (2) is along the circumferential direction of the cylinder barrel (4), and the width direction of the oil port (2) is along the axial direction of the cylinder barrel (4).
2. The oblong oil port structure for the hydraulic cylinder according to claim 1, wherein: both ends of the oil port (2) in the length direction are of semi-arc closed structures.
3. The oblong oil port structure for the hydraulic cylinder according to claim 1, wherein: the joint (3) is provided with an internal threaded hole, the oil port (2) is opposite to the internal threaded hole of the joint (3), and the maximum contour line of the oil port (2) does not exceed the bottom diameter of the internal threaded hole of the joint (3).
4. The oblong oil port structure for the hydraulic cylinder according to claim 3, wherein: the joint (3) is welded on the surface of the cylinder barrel (4).
5. The oblong oil port structure for the hydraulic cylinder according to claim 1, wherein: a guide sleeve (5) is fixed at the end part of the cylinder barrel (4); a piston rod (6) is arranged in the cylinder barrel (4), the outer end of the piston rod (6) penetrates through the guide sleeve (5), and a piston (1) is arranged at the inner end of the piston rod (6);
when the piston rod (6) extends outwards to the right end face of the piston (1) and contacts with the guide sleeve (5), the oil port (2) is opposite to a cavity formed between the piston (1) and the guide sleeve (5) in the radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120628606.5U CN214578049U (en) | 2021-03-29 | 2021-03-29 | Long circular oil port structure for hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120628606.5U CN214578049U (en) | 2021-03-29 | 2021-03-29 | Long circular oil port structure for hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214578049U true CN214578049U (en) | 2021-11-02 |
Family
ID=78355298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120628606.5U Active CN214578049U (en) | 2021-03-29 | 2021-03-29 | Long circular oil port structure for hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214578049U (en) |
-
2021
- 2021-03-29 CN CN202120628606.5U patent/CN214578049U/en active Active
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